My kits contain keys to tap the respective resource bases, adjusted for legalities.

Urban resources in relatively normal times can be acquired with money; mildly abnormal times call for self-supply of potentially critical items like safe water, medications, particulate filtering air mask, minor wound treatments, etcetera. All geared toward brief shelter-in-place in an indoor environment until I can get to bigger kits.

In contrast the land typically yields its resources to tools and there are not many restrictions on carrying knives and saws. Rural EDC is generally more robust and is also geared to a brief / overnight shelter-in-place strategy but in an outside environment with several fire-starting methods.